[XSlayer]

Hi i wanted to know, how can i save an index for a client, with bitsums

PHP Code:

new __int_Entity[33];

public CreateEntity( Client )
{
      __int_Entity[Client] = create_entity( "env_sprite" );
}
public RemoveEntity( Client )
{
     if(is_valid_ent(__int_Entity[Client]))
     {
         entity_set_int( __int_Entity[Client], EV_INT_flags, entity_get_int( __int_Entity[Client], EV_INT_flags ) | FL_KILLME );        
     }
     __int_Entity[Client]  = 0;
} 


[Bugsy]

May be more work than it's worth, what are you trying to accomplish?

[XSlayer]

Originally Posted by Bugsy May be more work than it's worth, what are you trying to accomplish?

try to save all 33 cells and bytes, like

PHP Code:

new __int_Variable[33];

public Test( Client )
{
       if(!__int_Variable[Client])) // if is false
       {
              __int_Variable[Client] = 1;
       } 
       else // if is true
       {
             __int_Variable[Client] = 0;
       }
} 


to

PHP Code:


#define SetPlayerBit(%1,%2)      (%1 |= (1<<(%2&31)))
#define ClearPlayerBit(%1,%2)    (%1 &= ~(1 <<(%2&31)))
#define CheckPlayerBit(%1,%2)    (%1 & (1<<(%2&31)))

new __int_Variable;

public Test( Client )
{
       if(!CheckPlayerBit( __int_Variable, Client )) 
       {
             SetPlayerBit(__int_Variable, Client);
       } 
       else 
       {
             ClearPlayerBit(__int_Variable, Client);
       }
} 


but in this case for saving and index

[Bugsy]

Take a look at the Manipulating bits outside of the bit-range of a memory cell section here https://forums.alliedmods.net/showthread.php?t=139916

I assume you are looking to store index's larger than 1 to 32, so you need to use an array which will give you increments of 32 for each cell used.

[XSlayer]

Originally Posted by Bugsy Take a look at the Manipulating bits outside of the bit-range of a memory cell section here https://forums.alliedmods.net/showthread.php?t=139916 I assume you are looking to store index's larger than 1 to 32, so you need to use an array which will give you increments of 32 for each cell used.

yes I read it, but I don't fully understand that part, I understand about setting the bits to players, but not what continues, that's why the post

[Bugsy]

Ok, I'll try to give you a quick visual

Lets use a 3-cell array

Cell 1 - 4 bytes/32 bits - 32 bits total
A single cell is perfect for player booleans since player ID's range from 1 to 32.
[ 0000 0000 ][ 0000 0000 ][ 0000 0000 ][ 0000 0000 ]

Cell 2 - 4 bytes/32 bits - 64 bits total
[ 0000 0000 ][ 0000 0000 ][ 0000 0000 ][ 0000 0000 ]

Cell 3 - 4 bytes/32 bits - 96 bits total
[ 0000 0000 ][ 0000 0000 ][ 0000 0000 ][ 0000 0000 ]

When you want to set bits beyond 32, you need to use an array, cell 2 holds bits 33 to 64, cell 3 holds 65-96, etc. Those macros do the work for you to set the appropriate bit.

[HamletEagle]

Please don't do this in practice. There is absolutely no reason for it.

[XSlayer]

Originally Posted by HamletEagle Please don't do this in practice. There is absolutely no reason for it.

and because??...

[Bugsy]

This is why I asked for your use-case. It's not beneficial to use bit-wise operators/logic if you need to jump through hoops to accomplish it. There is likely a much simpler and economical way to do what are attempting

[fysiks]

Originally Posted by XSlayer and because??...

You're using a modern computer for an ancient game engine, there won't be any issues with performance by using arrays.

Also, I have no idea what you're actually requesting. What does it even mean to "save an index"? Didn't you literally just write the code you needed in post #3? I think you'd need to provide context for what you are ACTUALLY trying to do so we can give you the best advice.